| Company | Timeline | Status | |
| Grunwald Engineering Services Ltd Director • Director | 18 Dec 2014←3 Years→7 Apr 2018 | Active | |
| Causebrook Smith Ltd Director • Director | 28 Jul 2009←8 Years→7 Apr 2018 | Active | |
| Grunwald Limited Director • Director | 3 Jul 2008←9 Years→7 Apr 2018 | Active | |
| Grunwald Limited Secretary • Unreported | 1 Aug 2007←10 Years→7 Apr 2018 | Active | |
